(6) باب مَا جَاءَ فِي إِعْلاَنِ النِّكَاحِ
Abu Al-Balj narrated from Muhammad bin Hatib Al-Jumahi who said that:
The Messenger of Allah said: "The distinction between the lawful and the unlawful is the Duff and the voice." (ID)
Reference (ID): Jami` at-Tirmidhi 1088 (ID)
In-book reference (ID): Book 11, Hadith 9 (ID)
English translation (ID): Vol. 2, Book 6, Hadith 1088 (ID)